Currently quarantine, block or allow, and approval for activesync devices is performed using the Set-ActiveSyncOrganizationSettings powershell cmdlet.

These features should be baked into Activesync Policies, allowing Exchange Administrators to prioritise block, quarantine and allow configurations based on the Activesync device policy a user mailbox has been set.

Voting

Many organizations use shared mailboxes to get a people independent Mailbox for a team. In Outlook you have automapping of those mailboxes, but when you want to access it from your smartphone it is not possible as Activesync does not allow you to access shared mailboxes